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Preparation method of tension-resistant medical conduit material and application thereof

A medical catheter and stretch-resistant technology, applied in the direction of catheters, etc., can solve problems such as insufficient stretch-resistant performance, and achieve the effect of improving performance.

Inactive Publication Date: 2018-09-04
苏州凌科特新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with medical catheters made of traditional materials, biomedical material catheters are slightly insufficient in tensile resistance, and are subject to certain restrictions in some applications that require tensile strength.

Method used

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  • Preparation method of tension-resistant medical conduit material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Put 3 parts of wollastonite powder and 2 parts of calcium hydroxide into the ball mill, and then add 95% ethanol solution of 2 times the mass of the solid mixture to it for wet ball milling. The ball-to-material ratio of the ball mill is 10:1 , the ball milling speed is 500 rpm, the ball milling time is 60 minutes, and then the mixed powder obtained by ball milling is placed in a vacuum drying oven at a temperature of 60° C. for 6 hours to obtain a dry mixed powder;

[0025] (2) Add 35 parts of methacrylate and 30 parts of ethylene glycol dimethacrylate into the vacuum reactor, evacuate to -0.08 MPa, set the temperature in the reactor to 160°C, and set the temperature in the reactor at 150 rpm Perform high-temperature stirring reaction at a stirring rate for 45 minutes, then lower the temperature in the reactor to 120°C, add 8 parts of methyl phenyl silicone oil, stir evenly at a stirring rate of 150 rpm, and then let it stand for heat preservation reaction 30 minut...

Embodiment 2

[0032] (1) Put 4 parts of wollastonite powder and 3 parts of calcium hydroxide into the ball mill, and then add an ethanol solution with a concentration of 2 times the mass of the solid mixture to it for wet ball milling. The ball-to-material ratio of the ball mill is 10:1 , the ball milling speed is 500 rpm, the ball milling time is 75 minutes, and then the mixed powder obtained by ball milling is placed in a vacuum drying oven and dried at a temperature of 65° C. for 7 hours to obtain a dry mixed powder;

[0033](2) Add 40 parts of methacrylate and 35 parts of ethylene glycol dimethacrylate into the vacuum reactor, evacuate to -0.09 MPa, set the temperature in the reactor to 170°C, and set the temperature at 155 rpm Perform high-temperature stirring reaction at a stirring rate for 50 minutes, then lower the temperature in the reactor to 120°C, add 10 parts of methyl phenyl silicone oil, stir evenly at a stirring rate of 155 rpm, and then let it stand for heat preservation rea...

Embodiment 3

[0040] (1) Put 5 parts of wollastonite powder and 4 parts of calcium hydroxide into the ball mill, and then add an ethanol solution with a concentration of 2 times the mass of the solid mixture to it for wet ball milling. The ball-to-material ratio of the ball mill is 10:1 , the ball milling speed is 500 rpm, the ball milling time is 90 minutes, and then the mixed powder obtained by ball milling is placed in a vacuum drying oven and dried at a temperature of 70° C. for 8 hours to obtain a dry mixed powder;

[0041] (2) Add 45 parts of methacrylate and 40 parts of ethylene glycol dimethacrylate into the vacuum reactor, evacuate to -0.1 MPa, set the temperature in the reactor to 180°C, and set the temperature in the reactor at 160 rpm Perform high-temperature stirring reaction at a stirring speed, the reaction time is 55 minutes, then lower the temperature in the reactor to 120°C, add 12 parts of methylphenyl silicone oil, stir evenly at a stirring speed of 160 rpm, and then stan...

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Abstract

The invention discloses a preparation method of a tension-resistant medical conduit material and application thereof. The preparation method comprises the following steps: performing wet-method ball milling on wollastonite powder and calcium hydroxide, and drying so as to obtain dried mixed powder; performing a high-temperature stirring reaction on methacrylate and ethylene glycol dimethacrylate in a vacuum reaction kettle, cooling, adding methyl phenyl silicon oil, leaving to stand, performing a heat-preservation reaction so as to obtain a high-temperature reactant, cooling, adding dimaleamicacid, di-tert-butyl peroxide and cyan-butyl cyanoacrylate, and performing a pressurization reaction in a nitrogen environment so as to obtain a secondary reactant; further mixing and stirring the dried mixed powder, the secondary reactant and an additive so as to obtain a thermal mixed material, further adding dimethyl sulfoxide, and implementing processes such as ultrasonic treatment, extrusionpelletization, injection molding, partitioning, packaging and sterilization, thereby obtaining a finished product, namely a medical conduit material. The medical conduit material prepared by using themethod is good in tension property, high in biological security and good in application prospect in medical materials.

Description

technical field [0001] The invention relates to the technical field of medical materials, in particular to a preparation method and application of stretch-resistant medical catheter materials. Background technique [0002] The study of biomedical materials has become an important branch of materials science, and has gradually evolved from passively adapting to biological environments to purposefully designing materials to achieve organic connections with biological tissues. Biomedical materials are the basis for the study of artificial organs and medical devices, and have become an important branch of materials science. Especially with the rapid development and major breakthroughs of biotechnology, biomaterials have become a hot spot for research and development by scientists from all over the world. Now, biomaterials science has become a fringe subject closely related to human modern healthcare system. Its importance is not only because it is closely related to human bein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L29/12A61L29/14
CPCA61L29/14A61L29/126
Inventor 李子寅
Owner 苏州凌科特新材料有限公司
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